Various options are provided as possible answers to the following questions - NSC Information Technology - Question 1 - 2020 - Paper 2
Question 1
Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1.1 to... show full transcript
Worked Solution & Example Answer:Various options are provided as possible answers to the following questions - NSC Information Technology - Question 1 - 2020 - Paper 2
Step 1
1.1.1 A person who studies an organisation's current computer systems and procedures and then designs information system solutions to help the organisation operate more efficiently is a …
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Answer
The correct answer is A: systems analyst. A systems analyst plays a critical role in assessing an organization's needs and designing appropriate technology solutions.
Step 2
1.1.2 A device that can be used to connect many different peripheral devices with a single connector is known as a USB …
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Answer
The correct answer is C: hub. A USB hub allows multiple devices to be connected through a single USB port.
Step 3
1.1.3 The process of discovering new patterns in data using sophisticated software is known as …
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Answer
The correct answer is D: data mining. Data mining involves analyzing large datasets to identify patterns and insights.
Step 4
1.1.4 The following variable name is NOT valid in Delphi:
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Answer
The correct answer is C: lsalary.VariablenamesinDelphicannotcontainspecialcharacterslike.
Step 5
1.1.5 Determine the value of y declared as an integer if the following Delphi statement is executed:
y := ceil(25.0/6) + 30 mod 6 - round(15.0/4);
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Answer
To solve for y, we first compute each part:
25.0/6 = 4.1667, and thus ceil(4.1667) = 5.
30 mod 6 = 0.
15.0/4 = 3.75, hence round(3.75) = 4.
Thus:
y = 5 + 0 - 4 = 1.
Therefore, the value of y is 1.
